The analysis and control of time-delay systems has gained increasing interest in the last
decades due to the effectiveness of delay differential equations (DDEs) in modeling a wide …

This work deals with the problem of finite-time and fixed-time observation of linear multiple
input multiple output (MIMO) control systems. The proposed nonlinear dynamic observers …

This paper proposes two nonlinear estimation approaches, namely based on Extended
Kalman Filter (EKF) and a Takagi-Sugeno Fuzzy Observer with 32 rules (TSFO-32), for a …

This paper addresses the problems of design and analysis of active disturbance rejection
control (ADRC) for uncertain nonlinear systems subject to input time-delay. A novel …

Vibrations in mechanical systems are oscillations occurring without being intentionally
provoked. They often have detrimental effects on the system performance and may cause …

This paper is concerned with the observer design problem for a class of multi-input–multi-
output nonlinear systems with the unmodeled dynamics, unknown parameters and external …

This note addresses the problem of feedback linearization for nonlinear systems with time-
varying input and output delays. To solve the realization issue of future states, a high-gain …

This paper investigates the problem of unknown input observer (UIO) design for Takagi–
Sugeno (TS) fuzzy systems with time-varying delay. For observer design, all the …

This paper focuses on the construction of distributed observers in the presence of arbitrarily
large communication time delays. In contrast with the traditional centralized observer with …

Partial state estimation has numerous applications in practice. Nevertheless, designing
delay-dependent functional observers (FOs) for systems with unknown time delays is …